Band dendrometer for sap flow system EMS 81 DR26E

Product Group: Sensors
  • manufactured bylogo small
  • sensor for accurate monitoring of the tree trunk circumference increment
  • intendef for Sap Flow systems EMS 8X line
  • no upper limit in stem diameter
  • non invasive fixing
  • low maintenance and easy installation
  • increment range 64 mm
  • step-less reading


Output voltage divider
Circumference increment measuring range 64 mm
Linearity 1 % of full scale
Resolution step-less
Protection rating IP68
Weight 350 g
Operating environment temperature  –40 to 60 °C
Operating environment humidity 0 to 100%

Non invasive fixing by tape

D RL 26 C non-invasive fixing
  • no effect on tree growth
  • integrated value for whole radial profile in measured height
  • almost identical thermal expansion of wood and stainless steel

Precise increment records

Dendrometer data
  • efficient tool for field measurement
  • comprises information about growth, water stress and freezing up of the trunk
  • together with sap flow and soil water potential measurement it gives realistic picture of drought stress and the tree response to it


documentdocument 2 Datasheet
documentdocument 2 Installation manual

Dendrometer Installation

Compatible with